128648-56-6Relevant academic research and scientific papers
Facile synthesis of indolizinoindolone, indolylepoxypyrrolooxazole, indolylpyrrolooxazolone and isoindolopyrazinoindolone heterocycles from indole and imide derivatives
Argade, Narshinha P.,Shelar, Santosh V.
, p. 6160 - 6169 (2021/07/21)
Chemo-, regio- and diastereoselective coupling reactions of indole with imide derivatives leading to unique heterocyclic systems are demonstrated. Acid-induced 3-position coupling reactions of indole with cyclic imide derived lactamols followed by acid promoted 2-position cyclizations with the corresponding aldehydes are described to obtain the indolizinoindolones and benzoindolizinoindolones. Base induced 2-position coupling reactions ofN-tosylindole withN-(2-iodoethyl)imides and the subsequent cyclizations provide indolylepoxypyrrolooxazole, indolylpyrrolooxazolone and indolyloxazoloisoindolone. Reductive cleavage of indolyloxazoloisoindolone to the corresponding alcohol followed by mesylation and base promotedN-cyclization affords thein situair-oxidized pentacyclic product hydroxyisoindolopyrazinoindolone. A regioisomeric structural revision of the natural product from 1,2,5,6,7,11c-hexahydro-3H-indolizino[7,8-b]indol-3-one to 1,2,5,6,11,11b-hexahydro-3H-indolizino(8,7-b)indol-3-one is also reported in the present studies focussed on the methodologies for heterocyclic synthesis.
Amidocarboxylic acid derivatives
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, (2008/06/13)
Amidocarboxylic acid derivatives of the formula: wherein R1 represents a hydrogen atom, etc.; R2 represents an alkylene group; R3 represents a hydrogen atom, etc.; R4 represents a hydrogen atom, etc.; X represents a substituted or unsubstituted aryl group, etc.,; Y represents an oxygen atom, etc.; Z represents an alkylene group, etc.; and W represents an alkyl group, etc.; and pharmacologically acceptable salts thereof and pharmacologically acceptable esters thereof are useful as the active ingredient of pharmaceutical compositions. They may be used to treat specified diseases, including diabetes mellitus, hyperlipemia, arteriosclerosis, hypertension, etc.
